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What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
Explain different categories of failures that occur in Oracle database? Categories of Failures - In Oracle database subsequent types of failures can occurred: Statement Failu
What are the disadvantages of file-processing system? Ans: The Disadvantages of File-Processing System a. Data redundancy and inconsistency - Data redundancy means not nece
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
Why older data models are being replaced by new data modelling 100 words accepted#
Increases efficiency : Data is stored close to most often used site, therefore retrieval would be faster. Also, data that is not required by local applications is not stored, there
What is meant by heuristic optimisation? Discuss the main heuristics that are applied during query optimisation. Ans: In heuristic optimization, heuristics are employed to r
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
We have a new website where I need someone to 1: Inhabit the back end with all the recruitment agencies in the UK. I require someone who is not manually going to do this, but who w
aggregation
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